Japanese Journal of Oral and Maxillofacial Surgery
Online ISSN : 2186-1579
Print ISSN : 0021-5163
ISSN-L : 0021-5163
Volume 58, Issue 10
Displaying 1-10 of 10 articles from this issue
Preface
Invited review article
  • Seiji IIDA
    2012 Volume 58 Issue 10 Pages 562-567
    Published: October 20, 2012
    Released on J-STAGE: November 20, 2014
    JOURNAL FREE ACCESS
    Maxillary anterior segmental distraction osteogenesis (MASDO) is a rather new surgical orthodontic treatment to produce an ideal maxillary dental arch form in patients with cleft lip and palate. Different from total maxillary advancement by DO, this surgical procedure can solves the problems in the small and retruded maxilla without the risk of deterioration of velopharyngeal function, because the distracted segment is only made at the anterior part of the maxillary bone.
    To advance the anterior segment in only a single vector, a single palatal bone-borne distractor or toothborne distractor is effective, but two hybrid type distractors on each side of alveolar process can produce some rotational movements of anterior segment by controlling advancement amount in each side. Therefore, this procedure solves not only the size of maxillary arch but also the shape of deformed dental arch.
    As bone height and width at distracted space on alveolar process is enough for fuature alignments of crowding teeth or anterior movement of molars, this treatment is an effective pre-orthodontic surgical treatment for solving discrepancy of maxillary dental arch.
    Download PDF (488K)
Case reports
  • Atsushi SHUDO, Yu USAMI, Naoki TANIIKE, Tetsuya NISHIDA, Toshihiko TAK ...
    2012 Volume 58 Issue 10 Pages 568-571
    Published: October 20, 2012
    Released on J-STAGE: November 20, 2014
    JOURNAL FREE ACCESS
    We report a case of dentigerous cyst associated with an impacted supernumerary tooth with similarcharacteristics to dens in dente. A 14-year-old girl was referred for further evaluation of a radiolucent lesionin the left side of the mandible. Radiographic examination showed an immature impacted third molar and amonolocular radiolucent lesion including a malformed tooth-like radiopacity.
    Surgical enucleation was performed under general anesthesia. Histopathological examination showed anodontogenic cyst and two distinct types of hard tissue. The cyst showed features of a dentigerous cyst. One ofthe hard tissues was an immature tooth, corresponding to the third molar. The other hard tissue consisted ofdentin, immature enamel, and enamel organ. Interestingly, this malformed tooth-like hard tissue had an outerlayer of dentin lined by an inner layer of enamel, similar to the characteristics of dens in dente.
    Download PDF (454K)
  • Atsutoshi YASO, Atsushi FUJITA, Yasuto YOSHIHAMA, Yuji KURIHARA, Seiji ...
    2012 Volume 58 Issue 10 Pages 572-575
    Published: October 20, 2012
    Released on J-STAGE: November 20, 2014
    JOURNAL FREE ACCESS
    Migration of a broken dental needle in the oral and maxillofacial region is a rare event. It is difficult to find and remove such a needle. We report the case of a 27-year-old man who was referred to our department for removal of a broken dental needle from the lateral pterygoid muscle. A 3-dimensional model was constructed based on CT data, and surgical simulation was performed to confirm the exact location of the broken dental needle. Minimally invasive surgery was performed with the assistance of an endoscope, and the needle was safely removed.
    Download PDF (572K)
  • Hidetaka YOKOE, Shinya WATANABE, Kaoru MURAKAMI, Shyuri HADA, Junko NA ...
    2012 Volume 58 Issue 10 Pages 576-580
    Published: October 20, 2012
    Released on J-STAGE: November 20, 2014
    JOURNAL FREE ACCESS
    Generally, S-1 is considered to be associated with a low frequency of interstitial pneumonia. We report a case of interstitial pneumonia that was apparently caused by S-1 during treatment for tongue carcinoma. The patient was a 72-year-old man. He was given S-1 (100 mg/day) for 7 days and received superselective intraarterial infusion chemotherapy for 3 weeks subsequently. He was given S-1 again and later underwent surgery. Eighteen days after surgery, fever and an increased white-cell count occurred. Infectious pneumonia was suspected, and the patient received an antimicrobial agent, but did not respond and fever continued. Because computed tomography of the lung showed ground-glass opacity in lung field 10 days later after the fever, interstitial pneumonia was diagnosed, and steroid-pulse therapy was started on the same day. Because S-1 was positive on a drug-induced lymphocyte stimulation test, and β -D-glucan was negative, the interstitial pneumonia was apparently caused by S-1. Our findings suggest that attention should be paid to chemically induced pulmonary disorders in patients who have a cough, fever, or dyspnea even while receiving anticancer drugs associated with a low incidence of interstitial pneumonia.
    Download PDF (415K)
  • Yoshito TAKASAKI, Masayuki TAKANO, Tetsuo YAMAMURA, Tatsuo TAGUCHI, Ma ...
    2012 Volume 58 Issue 10 Pages 581-585
    Published: October 20, 2012
    Released on J-STAGE: November 20, 2014
    JOURNAL FREE ACCESS
    A 69-year-old man presented at our department with persistent severe hypoesthesia in the lower lip and mentum. The symptoms developed on the day after the placement of dental implants into the left mandibular molar region (36, 37) 7 months previously. Sensory testing of the inferior labial branch region revealed a Semmes-Weinstein (SW) test score of 4.08 (healthy side, 1.65) , an unmeasurable two-point discrimination (2PD) score (healthy side, 4 mm) , and inability to recognize heat, cold, or pain. Computed tomography revealed that the implant tip reached the inferior wall of the mandibular canal at 36 and 37. Implant removal and surgical exploration of neural damage were performed using a surgical microscope with the patient under general anesthesia. After resection of the damaged inferior alveolar nerve, a graft of the greater auricular nerve was applied to the defective region. Awareness of cold, pain, and heat returned in postoperative months 3, 6, and 10, respectively. Sensory testing demonstrated a postoperative SW score of 1.65 (healthy side, 1.65) at 10 months and a postoperative 2PD score of 6 mm (healthy side, 6 mm) at 18 months. Although symptoms of mild hypoesthesia were present from postoperative months 18 to 23, there was no dysesthesia or allodynia, and progress was satisfactory.
    Download PDF (572K)
  • Hideshi NAKANO, Shoko SUZUKI, Keiko NAITO, Takashi KUBOTA, Isao KIMURA ...
    2012 Volume 58 Issue 10 Pages 586-590
    Published: October 20, 2012
    Released on J-STAGE: November 20, 2014
    JOURNAL FREE ACCESS
    Adenocarcinoma (not otherwise specified, NOS) is a malignant salivary gland tumor without the histologic characteristics of other salivary gland tumors. We report a case of adenocarcinoma that developed in the hard palate of a 69-year-old woman who presented with a swelling in the palate. The lesion was an elastic hard tumor measuring 20 × 20 mm with a clear border. The clinical diagnosis was a benign salivary gland tumor, and the tumor was resected with the patient under general anesthesia. The histopathological diagnosis was adenocarcinoma (NOS). There was no recurrence 1 year after the operation.
    Download PDF (604K)
  • Kosuke KANEKO, Hakubun YONEZU, Yoko TANABE, Teppei NAKAMURA, Nobuaki H ...
    2012 Volume 58 Issue 10 Pages 591-594
    Published: October 20, 2012
    Released on J-STAGE: November 20, 2014
    JOURNAL FREE ACCESS
    We report a case of mandibular fracture concomitant with lateral-superior displacement of both mandibular condyles. The patient was 69-year-old man. While operating a crane, a hanging iron pillar crashed into and injured his face at a construction site. Computed tomography showed a complex midline fracture of the mandible and lateral-superior displacement of both condylar heads. We were able to reposition both condyles into a normal position at an early stage.
    After 6 months' follow-up, the temporomandibular joint function was normal.
    Download PDF (447K)
  • Takamasa SHIROZU, Fumitaka TERASAWA , Mawoomi MOON, Tadashi TATEMATSU, ...
    2012 Volume 58 Issue 10 Pages 595-599
    Published: October 20, 2012
    Released on J-STAGE: November 20, 2014
    JOURNAL FREE ACCESS
    Granulocytic sarcoma (GS) is a localized infiltrate of immature granulocytes in an extramedullary site. This lesion is most frequently associated with leukemia, but can occur with other myeloproliferative disorders. We report an unusual case of GS of the gingiva and skin associated with acute myelogenous leukemia.
    A 32-year-old man was referred to our department because of bilateral swelling of the cervical lymph nodes and gingiva accompanied by general fatigue and body weight loss. He also had a rash on the right side of the neck and right lower leg.
    Blood tests showed a high leukocyte count (21,370/μL), and bone marrow examination revealed acute myelogenous leukemia (French-American-British classification, M5b). We performed biopsies of the gingiva and skin lesion, and histological examination of the surgical specimen demonstrated GS.
    Systemic chemotherapy was initiated, and complete remission was successfully induced. The lesions of the cervical lymph nodes, gingiva, and skin disappeared after chemotherapy.
    Download PDF (562K)
  • Tadahiro SHIMOMURA, Kazuhiko YAMAMOTO, Miyako KURIHARA, Takahiro YAGYU ...
    2012 Volume 58 Issue 10 Pages 600-603
    Published: October 20, 2012
    Released on J-STAGE: November 20, 2014
    JOURNAL FREE ACCESS
    A case of sting wounds of the oral mucosa caused by spermatophores of a raw squid is reported. The patient was a 61-year-old woman. She noticed pain of the oral mucosa immediately after eating part of a raw squid. Several milky white, club-shaped foreign bodies measuring 3 to 5 mm were stuck in the tongue, buccal mucosa, and floor of the mouth. These were not mobile and were hard to remove. The clinical diagnosis was sting wounds of the oral mucosa caused by spermatophores of a squid. These foreign bodies were excised together with the surrounding tissue under local anesthesia. Wound healing was uneventful. Histologically, the foreign bodies contained numerous spermatozoa and were identified as spermatothecae, which were ejected from the spermatophores of a raw squid.
    Download PDF (421K)
feedback
Top